[
  "Find the volume of water in Tank A: 1.5 x 1.0 x 0.60 = 0.9 cubic metres.",
  "Find the water already in Tank B: 1.2 x 0.75 x 0.10 = 0.09 cubic metres. Total = 0.99 cubic metres.",
  "Divide by Tank B's base area (1.2 x 0.75 = 0.9 m^2): 0.99 / 0.9 = 1.1 m."
]